*Provides conventional motor oils with antiwear additives like zinc and phosphorus (ZDDP) necessary to protect against camshaft and valvetrain damage on break-in
*Allow pistons rings to seat properly with less-slick oil, while antiwear additives protect other engines components to avoid excessive wear
*Can also be used in conventional and synthetic oils during regular operation, providing an extra package of protection otherwise not found in most motor oils
*16oz bottle treats up to 12 quarts of motor oil--in many cases, one bottle can serve two engines or oil changes

Additional shipping applies if this is the only item purchased-Please Add below